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tests/unit/data/zypper/dup-empty.xml

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+<?xml version='1.0'?>
+<stream>
+<message type="info">Loading repository data...</message>
+<message type="info">Computing distribution upgrade...</message>
+<install-summary download-size="19047" space-usage-diff="0" packages-to-change="4" need-restart="0" need-reboot="0">
+</install-summary>
+<prompt id="1" type="0">Continue?</prompt>
+</stream>